When doing a snapshot, network does not work any more with Linux guest. => Fixed in 1.5.4

[Vincent Bernat]

Using VirtualBox 1.5.0 OSE (1.5.0-dfsg-1 from Debian).

Here are the steps:

• install a Debian Etch as guest system
• after installation, check that network is working (ping another machine)
• take a snapshot
• ping again the same machine: does not work any more.

Rebooting the guest does not solve the problem. modprobe -r pcnet32 ; modprobe pcnet32 does not solve the problem. Halting the guest and starting it again solves the problem.

I use a bridged tun interface.

br0		8000.000cf1a5600d	no		eth0
							tun-test

If I use tcpdump on tun-test, I see DHCP request from guest and answers from DHCP server. I suppose the problem is then receiving on guest. Same applies for ARP. Guest kernel is 2.6.18-5 from Debian. I suppose this is not a kernel problem since rebooting does not solve the problem.

[Vincent Bernat]

Another way to solve the problem is shutting down the machine and asking it to restore the previous state. When starting the machine again, the network is here again.

[Steven Van Acker]

I have the same problem and the same setup. I'm using Ubuntu Feisty as the host (kernel 2.6.20-16-generic), virtualbox 1.5.0

I've tried a Debian sarge as guest OS, aswell as Windows XP.

I've also tried reverting to virtualbox 1.4.0 and get the same problem. Virtualbox 1.3.8 didn't want to run on my Ubuntu, so I couldn't test there

[Renaud Saint-Gratien]

I have the same problem using NAT networking mode with Etch and Knoppix 5.1.1 as guest OS (host OS is Etch).

[Frank Mehnert]

Duplicate of #837, fixed in 1.5.4.